22988438 has 16 divisors (see below), whose sum is σ = 37691136. Its totient is φ = 10428840.

The previous prime is 22988429. The next prime is 22988473. The reversal of 22988438 is 83488922.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21095 + ... + 22157.

It is an arithmetic number, because the mean of its divisors is an integer number (2355696).

Almost surely, 2^22988438 is an apocalyptic number.

22988438 is a deficient number, since it is larger than the sum of its proper divisors (14702698).

22988438 is a wasteful number, since it uses less digits than its factorization.

22988438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059.

The product of its digits is 221184, while the sum is 44.

The square root of 22988438 is about 4794.6259499569. The cubic root of 22988438 is about 284.3390366790.

It can be divided in two parts, 229884 and 38, that added together give a palindrome (229922).

The spelling of 22988438 in words is "twenty-two million, nine hundred eighty-eight thousand, four hundred thirty-eight".